公开(公告)号：EP2241744A1

公开(公告)日：2010-10-20

申请号：EP09157959.9

申请日：2009-04-15

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Williams, Anthony ,  Male, Andrew

IPC: F02M59/02 ,  F02M59/36 ,  F02M59/46

CPC classification number: F02M59/02 ,  F02D41/3845 ,  F02M59/368 ,  F02M59/462 ,  F02M63/0035 ,  F02M63/0054 ,  F02M2200/502

Abstract: A control method for a high-pressure fuel pump comprising a plurality of pump elements (17), each of which comprises a plunger (10) having a pumping stroke during which fuel within a pump chamber (6) is pressurised and a filling stroke during which fuel is supplied to the pump chamber (6) for pressurisation, and a valve (18) for controlling fuel flow into and/or out of the pump chamber (6). The high-pressure fuel pump has a maximum pump capacity corresponding to all of the pump elements pumping at maximum capacity. The method comprises reducing the pump capacity of the high-pressure fuel pump by reducing the pump duty of at least one of the pump elements to less than its maximum capacity.

Abstract translation: 一种用于高压燃料泵的控制方法，包括多个泵元件（17），每个泵元件（17）包括具有泵送冲程的柱塞（10），在泵冲程期间，泵室（6）内的燃料被加压，并且填充冲程在 哪个燃料供应到用于加压的泵室（6），以及用于控制进入和/或离开泵室（6）的燃料的阀（18）。 高压燃油泵具有对应于以最大容量泵送的所有泵泵元件的最大泵容量。 该方法包括通过将至少一个泵元件的泵功率降低到小于其最大容量来降低高压燃料泵的泵容量。